Improved error handling for MySQL connection issues and added support to PM users on certain errors

BotConfig.py

@@ -7,6 +7,7 @@ def create_config(config):
                          'Status': '',
                          'Prefix': '?',
                          'Bot_Mod': ''
+                         'Error_Users: '''
                          }
     config['SQL'] = {'Dialect+Driver': 'mysql+mysqldb',
                      'Username': '',
@@ -51,6 +52,7 @@ class Config:
             self.prefix = self.config['Discord']['Prefix']
             self.dynmap_url = self.config['Minecraft']['Dynmap_Url']
             self.bot_mod = self.config['Discord']['Bot_Mod'].split(',')
+            self.error_users = self.config['Discord']['Error_Users'].split(',')
             self.count = int(self.config['Logging']['Count'])
             self.rotation_duration = int(self.config['Logging']['Rotation_Duration'])
             self.special_name_list = dict(self.config.items('Special Names'))

bot.py

@@ -4,15 +4,14 @@ import logging
 from discord import Game
 from discord.ext import commands
 from discord.utils import oauth_url
+from sqlalchemy.exc import OperationalError
 
-from BotConfig import *
+from BotConfig import bot_config
 from BotErrors import *
 from Commands import Commands
 from DatabaseModels import Player
 from MinecraftAccountInfoGrabber import *
 
-from pymysql.err import OperationalError
-
 logger = logging.getLogger(__name__)
 
 description = '''
@@ -27,11 +26,7 @@ If have a suggestion or if something is borked, you can PM my ding dong of a cre
 '''
 
 bad_error_message = 'OOPSIE WOOPSIE!! Uwu We made a fucky wucky!! A wittle fucko boingo! The admins at our ' \
-                        'headquarters are working VEWY HAWD to fix this! (Error in command {}: {})'
+                    'headquarters are working VEWY HAWD to fix this! (Error in command {})'
-
-
-bot = commands.Bot(command_prefix=bot_config.prefix, description=description, case_insensitive=True)
-bot_commands = Commands()
 
 extensions = ['cogs.Add_Commands',
               'cogs.Delete_Commands',
@@ -39,6 +34,13 @@ extensions = ['cogs.Add_Commands',
               'cogs.Search_Commands',
               'cogs.Admin_Commands']
 
+bot = commands.Bot(command_prefix=bot_config.prefix, description=description, case_insensitive=True)
+
+try:
+    bot_commands = Commands()
+except OperationalError:
+    logger.info('Could not connect to MySQL server.')
+
 
 @bot.event
 async def on_ready():
@@ -84,23 +86,31 @@ async def on_command_error(error, ctx):
     elif isinstance(error.original, PlayerNotFound):
         error_str = 'Make sure to use ?register first you ding dong.'
     elif isinstance(error.original, EntryNameNotUniqueError):
-        error_str = 'An entry in the database already has that name ding dong.'
+        error_str = 'An entry in the database already has that name you ding dong.'
     elif isinstance(error.original, DatabaseValueError):
         error_str = 'Use a shorter name or a smaller value, dong ding.'
     elif isinstance(error.original, NotOnServerError):
         error_str = 'Command needs to be run on 24CC. Run this command there whoever you are.'.format()
     elif isinstance(error.original, OperationalError):
+        await send_error_message('Error connecting to the MySQL server, is it offline?')
         error_str = 'Database connection issue, looks like some admin has to fix something.'.format()
     else:
+        await send_error_message('Geoffrey encountered unhandled exception: {}. Context:'.format(error, ctx.args))
+
         logger.error("Geoffrey encountered unhandled exception: %s", error)
-        error_str = bad_error_message.format(ctx.invoked_with, error)
+        error_str = bad_error_message.format(ctx.invoked_with)
 
     await bot.send_message(ctx.message.channel, '{} **Error Running Command:** {}'.format(ctx.message.author.mention,
                                                                                           error_str))
 
 
+async def send_error_message(msg):
+    for user_id in bot_config.error_users:
+        user = await bot.get_user_info(user_id)
+        await bot.send_message(user, msg)
+
+
 async def username_update():
-    session = None
     await bot.wait_until_ready()
     while not bot.is_closed:
         session = bot_commands.interface.database.Session()
@@ -118,6 +128,7 @@ async def username_update():
             logger.info("Username lookup error.")
             session.rollback()
         except OperationalError:
+            await send_error_message('Error connecting to the MySQL server, is it offline?')
             logger.info("MySQL connection error")
         finally:
             session.close()
@@ -126,6 +137,7 @@ async def username_update():
 
 def start_bot():
     try:
+        Commands()
         for extension in extensions:
             try:
                 bot.load_extension(extension)

cogs/Search_Commands.py

@@ -28,10 +28,11 @@ class Search_Commands:
 
             result = bot_commands.find(search)
 
-            await self.bot.say('{}, The following entries match **{}**:\n{}'.format(ctx.message.author.mention, search, result))
+            await self.bot.say(
+                '{}, The following entries match **{}**:\n{}'.format(ctx.message.author.mention, search, result))
         except LocationLookUpError:
-            await self.bot.say('{}, no matches to **{}** were found in the database.'.format(ctx.message.author.mention, search))
+            await self.bot.say(
-
+                '{}, no matches to **{}** were found in the database.'.format(ctx.message.author.mention, search))
 
     @commands.command(pass_context=True)
     @commands.cooldown(5, 60, commands.BucketType.user)
@@ -43,12 +44,12 @@ class Search_Commands:
         try:
             result = bot_commands.tunnel(player)
 
-            await self.bot.say('{}, **{}** owns the following tunnels: \n{}'.format(ctx.message.author.mention, player, result))
+            await self.bot.say(
+                '{}, **{}** owns the following tunnels: \n{}'.format(ctx.message.author.mention, player, result))
         except LocationLookUpError:
             await self.bot.say('{}, no tunnels for **{}** were found in the database.'
                                .format(ctx.message.author.mention, player))
 
-
     @commands.command(pass_context=True)
     @commands.cooldown(5, 60, commands.BucketType.user)
     async def find_around(self, ctx, x_pos: int, z_pos: int, *args):
@@ -86,7 +87,8 @@ class Search_Commands:
                 await self.bot.say('{}, there are no locations within {} blocks of that point'
                                    .format(ctx.message.author.mention, radius))
         except ValueError:
-            await self.bot.say('{}, invalid radius, the radius must be a whole number.'.format(ctx.message.author.mention,
+            await self.bot.say(
+                '{}, invalid radius, the radius must be a whole number.'.format(ctx.message.author.mention,
                                                                                 radius))
         except InvalidDimError:
             await self.bot.say('{}, {} is an invalid dimension.'.format(ctx.message.author.mention, dimension))
@@ -100,7 +102,8 @@ class Search_Commands:
         """
         try:
             result = bot_commands.selling(item_name)
-            await self.bot.say('{}, the following shops sell **{}**: \n{}'.format(ctx.message.author.mention, item_name, result))
+            await self.bot.say(
+                '{}, the following shops sell **{}**: \n{}'.format(ctx.message.author.mention, item_name, result))
         except ItemNotFound:
             await self.bot.say('{}, no shop sells **{}**.'.format(ctx.message.author.mention, item_name))